Review Problems

1
Unit 1

• Review Problems

2
LCM GCF
3
LCM/GCF 1

• Find the GCF of 8 and 30

4
LCM/GCF 1 Answer

• Find the GCF of 8 and 30

5
LCM/GCF 2

• Find the GCF of 42 and 56

6
LCM/GCF 2Answer

• Find the GCF of 42 and 56

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LCM/GCF 3

• Find the GCF of 75 and 30

8
LCM/GCF 3Answer

• Find the GCF of 75 and 30

9
LCM/GCF 4

• Find the LCM of 16 and 20.

10
LCM/GCF 4Answer

• Find the LCM of 16 and 20.

11
LCM/GCF 5

• Find the LCM of 18 and 24

12
LCM/GCF 5Answer

• Find the LCM of 18 and 24

13
LCM/GCF 6

• Find the LCM of 9 and 12

14
LCM/GCF 6Answer

• Find the LCM of 9 and 12

15
LCM/GCF 7

• Publix sells apple juice in 8oz containers,
  pineapple juice in 12 oz containers and grape
  juice in 16 oz containers. If Noah wants to have
  the same amount of each juice to make some punch,
  what is the least amount of ounces he should buy
  of each flavor of fruit juice? How many
  containers of each flavor is he buying?

16
LCM/GCF 7Answer

• Publix sells apple juice in 8oz containers,
  pineapple juice in 12 oz containers and grape
  juice in 16 oz containers. If Noah wants to have
  the same amount of each juice to make some punch,
  what is the least amount of ounces he should buy
  of each flavor of fruit juice? How many
  containers of each flavor is he buying?

17
LCM/GCF 8

• Joe Bob is making a garden of 36 tomato plants
  and 45 corn plants. He wants to plant the same
  number and type of veggie in each row. What is
  the maximum number of veggie plants Joe Bob can
  plant per row? How many rows of tomato plants
  will he have? How many rows of corn plants?

18
LCM/GCF 8Answer

• Joe Bob is making a garden of 36 tomato plants
  and 45 corn plants. He wants to plant the same
  number and type of veggie in each row. What is
  the maximum number of veggie plants Joe Bob can
  plant per row? How many rows of tomato plants
  will he have? How many rows of corn plants?

19
LCM/GCF 9

• Logan is buying hot dogs for a class picnic. Hot
  dogs are sold in packages of 10. Hot dog buns
  are sold in packages of 8. What is the smallest
  number of hot dogs and buns Logan can buy to have
  an equal number of each?

20
LCM/GCF 9Answer

• Logan is buying hot dogs for a class picnic. Hot
  dogs are sold in packages of 10. Hot dog buns
  are sold in packages of 8. What is the smallest
  number of hot dogs and buns Logan can buy to have
  an equal number of each?

21
LCM/GCF 10

• There are 40 girls and 32 boys who want to
  participate in 6th grade intramurals. If
  eachteam must have the same number of girls and
  the same number of boys, what is the greatest
  number of teams that can participate in
  intramurals? How many girls and boys will be on
  each team?

22
LCM/GCF 10Answer

• There are 40 girls and 32 boys who want to
  participate in 6th grade intramurals. If
  eachteam must have the same number of girls and
  the same number of boys, what is the greatest
  number of teams that can participate in
  intramurals? How many girls and boys will be on
  each team?

23
Dividing Fractions
24
Dividing Fractions 1

• Explain how to divide fractions.

25
Dividing Fractions 1Answer

• Explain how to divide fractions.
• Rewrite whole numbers and mixed numbers as
  improper fractions. Bring down (skip) the first
  fraction, change the division to multiplication,
  flip the 2nd fraction (reciprocal). Multiply.
  Simplify your answer.

26
Dividing Fractions 2
27
Dividing Fractions 2Answer
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Dividing Fractions 3
29
Dividing Fractions 3Answer
30
Dividing Fractions 4
31
Dividing Fractions 4Answer
32
Dividing Fractions 5
33
Dividing Fractions 5Answer
34
Dividing Fractions 6
35
Dividing Fractions 6Answer
36
Dividing Fractions 7
37
Dividing Fractions 7Answer
38
Dividing Fractions 8
39
Dividing Fractions 8Answer
40
Dividing Fractions 9
41
Dividing Fractions 9Answer
42
Dividing Fractions 10
43
Dividing Fractions 10Answer
44
Dividing Fractions 11
45
Dividing Fractions 11Answer
46
Dividing Fractions 12

• When you divide one number by a fraction, why is
  the answer larger than the dividend?

47
Dividing Fractions 12Answer

• When you divide one number by a fraction, why is
  the answer larger than the dividend?
• If you divide a number by a number less than 1,
  you will get a quotient bigger than the original
  number.

48
Dividing Fractions 13

• At Lindas restaurant, one serving of chili is
  cups. The chef makes 48 cups of chili each
  night. How many servings of chili are in 48 cups?

49
Dividing Fractions 13Answer

• At Lindas restaurant, one serving of chili is
  cups. The chef makes 48 cups of chili each
  night. How many servings of chili are in 48 cups?
  

50
Dividing Fractions 14

• Rick bought 12 lb of raisins. He packed them into
  freezer bags so that each bag weighs lb. How
  many freezer bags did she pack?

51
Dividing Fractions 14 Answer

• Rick bought 12 lb of raisins. He packed them into
  freezer bags so that each bag weighs lb. How
  many freezer bags did she pack?

52
Dividing Fractions 15

• Jane uses ¼ of a cup of batter for each cupcake.
  How many cupcakes can she make if she starts with
  3 ½ cups of batter? Draw a model to represent
  this situation.

53
Dividing Fractions 15Answer

• Jane uses ¼ of a cup of batter for each cupcake.
  How many cupcakes can she make if she starts with
  3 ½ cups of batter? Draw a model to represent
  this situation.
• 14 cupcakes

54
Distributive Property
55
Distributive Property 1

• Use the distributive property to rewrite 21 35

56
Distributive Property 1Answer

• Use the distributive property to rewrite 21 35
• 7 x 3 7 x 5
• 7(3 5)

57
Distributive Property 2

• Use the Distributive Property to rewrite 32 24.

58
Distributive Property 2Answer

• Use the Distributive Property to rewrite 32 24.
• 2 x 16 2 x 12 8 x 4 8 x 3 4 x
  8 4 x 6
• 2(16 12) 8 (4 3)
  4(8 6)

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Distributive Property 3

• Use the Distributive Property to rewrite 12 9.

60
Distributive Property 3Answer

• Use the Distributive Property to rewrite 12 9.
• 3 x 4 3 x 3
• 3(4 3)

61
Distributive Property 4

• Draw a model to show that
• 4(3 2) 12 8

62
Distributive Property 4Answer

• Draw a model to show that
• 4(3 2) 12 8
• 4 groups of 3 smiley faces 12 smiley faces.
• 4 groups of 2 moons 8 moons

63
Decimals
64
Decimals 1

• At the end of the school year, Taylor owed book
  fines of 4.35 and lab fees of 2.30. She paid
  both. She started with 10. How much should she
  have left?

65
Decimals 1Answer

• At the end of the school year, Taylor owed book
  fines of 4.35 and lab fees of 2.30. She paid
  both. She started with 10. How much should she
  have left?

66
Decimals 2

• Margie spent 21.89 on material to make a skirt.
  The material cost 3.98 per yard. How many yards
  did Margie buy?

67
Decimals 2Answer

• Margie spent 21.89 on material to make a skirt.
  The material cost 3.98 per yard. How many yards
  did Margie buy?

68
Decimals 3

• 35.34 6.2

69
Decimals 3Answer

• 35.34 6.2
• Solution

70
Decimals 4

• 11.6 8

71
Decimals 4 Answer

• 11.6 8

72
Decimals 5

• 2.52 0.4

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Decimals 5Answer

• 2.52 0.4

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Decimals 6

• 12.6 x 2.1

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Decimals 6Answer

• 12.6 x 2.1

76
Decimals 7

• 1.52 x 2.5

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Decimals 7Answer

• 1.52 x 2.5

78
Decimals 8

• Gregs scores at four gymnastic meets were 9.65,
  8.758, 9.884, and 9.5 What was his total score
  for all four meets?

79
Decimals 8Answer

• Gregs scores at four gymnastic meets were 9.65,
  8.758, 9.884, and 9.5 What was his total score
  for all four meets?

80
Decimals 9

• Courtney walked a total of 16 miles in 4 days.
  If she walked 3.45 miles on Monday, 4 miles on
  Tuesday, and 6.8 miles on Wednesday. How many
  miles did she walk on Thursday?

81
Decimals 9Answer

• Courtney walked a total of 16 miles in 4 days.
  If she walked 3.45 miles on Monday, 4 miles on
  Tuesday, and 6.8 miles on Wednesday. How many
  miles did she walk on Thursday?

82
Decimals 10

• 7 0.6

83
Decimals 10Answer

• 7 0.6

84
Decimals 11

• 10.508 6.73

85
Decimals 11Answer

• 10.508 6.73

86
Decimals 12

• 0.975 13.8

87
Decimals 12Answer

• 0.975 13.8

88
Decimals 13

• You buy 5 CDs for 9.68 each. You also buy 6
  itunes for 1.39 each. How much do you spend?

89
Decimals 13Answer

• You buy 5 CDs for 9.68 each. You also buy 6
  itunes for 1.39 each. How much do you spend?